DOTENTED CER-ZIRCON-ALUMINUM CATALYTIC CONTAINER MATERIAL WITH OXYGEN STORAGE CAPACITY (OSC) AND COATING MADE OF IT
Patent Information
- Application Number
- DE602016094053
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2016-06-16
- Filing Date
- 2016-07-01
- Publication Date
- 2025-11-12
- Estimated Expiration
- 2036-07-01
AI Technical Summary
Existing catalyst support materials face challenges with high thermal instability and limited oxygen storage capacity, particularly at elevated temperatures, which affects the efficiency and durability of automotive exhaust catalysts.
A catalyst support material comprising ceria-zirconia with an interactive promoter, stabilizer, and oxidizing dopant, such as copper oxide, lanthanum oxide, and yttrium oxide, enhances thermal stability and oxygen storage capacity, formulated as D-CZMLA, with specific weight ratios and phase structures to maintain high surface area even after hydrothermal aging.
The D-CZMLA material maintains a high specific surface area and improved oxygen storage capacity, reducing activation temperatures by up to 50% and requiring less platinum group metals, thus enhancing catalytic performance and durability in automotive exhaust systems.